public void Snap()
{
var selectedPolylines = sessionData.SelectedSketchObjects.OfType <Polyline>().ToArray();
var selectedPolygons = sessionData.SelectedSketchObjects.OfType <Polygon>().ToArray();
var selectedCylinder = sessionData.SelectedNewPrimitives.OfType <NewCylinder>().FirstOrDefault();
var selectedCone = sessionData.SelectedNewPrimitives.OfType <NewCone>().FirstOrDefault();
if (sessionData.SelectedNewPrimitives.Count == 1)
{
// initialize our snapped primitive
var newPrimitive = sessionData.SelectedNewPrimitives.First();
var selectedCurves = sessionData.SelectedSketchObjects.ToArray();
var snappedPrimitive = snappersManager.Create(selectedCurves, newPrimitive);
snappedPrimitive.UpdateFeatureCurves();
// update session data
sessionData.SnappedPrimitives.Add(snappedPrimitive);
sessionData.NewPrimitives.Remove(newPrimitive);
sessionData.FeatureCurves.AddRange(snappedPrimitive.FeatureCurves);
}
OptimizeAll();
eventAggregator.GetEvent <SnapCompleteEvent>().Publish(null);
}
private void DoUpdate()
{
if (optimizationTask != null)
{
shouldOptimizeAgain = true;
return;
}
oldSnappedPrimitive = snappedPrimitive;
snappedPrimitive = snappersManager.Create(newPrimitive);
snappedPrimitive.UpdateFeatureCurves();
var emptyCurvesToAnnotations = new Dictionary <FeatureCurve, ISet <Annotation> >();
var objectivesAndConstraints = snappersManager.Reconstruct(snappedPrimitive, emptyCurvesToAnnotations);
var objective = objectivesAndConstraints.Item1;
var constraints = objectivesAndConstraints.Item2;
var primitivesWriter = primitivesReaderWriterFactory.CreateWriter();
primitivesWriter.Write(snappedPrimitive);
var vars = primitivesWriter.GetVariables();
var vals = primitivesWriter.GetValues();
optimizationTask = Task.Factory.StartNew <double[]>(
_ => optimizer.Minimize(objective, constraints, vars, vals).Last(), TaskScheduler.Default)
.ContinueWith(task =>
{
if (disposed)
{
return;
}
var optimum = task.Result;
// update primitives from the optimal values
primitivesReaderWriterFactory.CreateReader().Read(optimum, snappedPrimitive);
snappedPrimitive.UpdateFeatureCurves();
// update the task managment fields.
sessionData.SnappedPrimitives.Remove(oldSnappedPrimitive);
optimizationTask = null;
if (shouldOptimizeAgain)
{
shouldOptimizeAgain = false;
DoUpdate();
}
else
{
sessionData.SnappedPrimitives.Add(snappedPrimitive);
eventAggregator.GetEvent <SnapCompleteEvent>().Publish(null);
}
}, TaskScheduler.FromCurrentSynchronizationContext());
}
private Tuple <NewPrimitive, SnappedPrimitive> ConvertToSnapped()
{
// initialize our snapped primitive
var newPrimitive = sessionData.SelectedNewPrimitives.First();
var snappedPrimitive = snappersManager.Create(newPrimitive);
snappedPrimitive.UpdateFeatureCurves();
// update session data
sessionData.SnappedPrimitives.Add(snappedPrimitive);
sessionData.NewPrimitives.Remove(newPrimitive);
sessionData.FeatureCurves.AddRange(snappedPrimitive.FeatureCurves);
return(Tuple.Create(newPrimitive, snappedPrimitive));
}